diff -Naur a/Python-2.7.10/Modules/cPickle.c b/Python-2.7.10/Modules/cPickle.c
--- a/Python-2.7.10/Modules/cPickle.c	2015-07-25 16:32:19.152893375 +0530
+++ b/Python-2.7.10/Modules/cPickle.c	2015-07-25 16:46:34.243058610 +0530
@@ -2910,7 +2910,7 @@
             if (ik >= lm || ik == 0) {
                 PyErr_SetString(PicklingError,
                                 "Invalid get data");
-                return NULL;
+                goto err;
             }
             have_get[ik] = 1;
             rsize += ik < 256 ? 2 : 5;